In the entire world, Байн (Bain 
, Bayn 
, Bajn 
) is quite a common unisex first name. The first name Байн is characteristic of India, where it is a rare epicene name, Indonesia, where it is a rare principally male, but very seldom female name, and the Democratic Republic of the Congo, where it is a rare masculine name. More prevalently, Байн is the last name as well as the forename.